---
title: sourceFrame
framework: videotoolbox
role: symbol
role_heading: Instance Property
path: videotoolbox/vttemporalnoisefilterparameters/sourceframe
---

# sourceFrame

Current source frame; must be non nil.

## Declaration

```swift
var sourceFrame: VTFrameProcessorFrame { get }
```

## See Also

### Inspecting the parameters

- [nextFrames](videotoolbox/vttemporalnoisefilterparameters/nextframes.md)
- [previousFrames](videotoolbox/vttemporalnoisefilterparameters/previousframes.md)
- [filterStrength](videotoolbox/vttemporalnoisefilterparameters/filterstrength.md)
- [hasDiscontinuity](videotoolbox/vttemporalnoisefilterparameters/hasdiscontinuity.md)